113406377520 has 80 divisors (see below), whose sum is σ = 351596326752. Its totient is φ = 30238556160.

The previous prime is 113406377507. The next prime is 113406377537. The reversal of 113406377520 is 25773604311.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×113406377520² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3131034 + ... + 3167046.

Almost surely, 2^113406377520 is an apocalyptic number.

113406377520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113406377520 is an abundant number, since it is smaller than the sum of its proper divisors (238189949232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113406377520 is a wasteful number, since it uses less digits than its factorization.

113406377520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49150 (or 49144 counting only the distinct ones).

The product of its (nonzero) digits is 105840, while the sum is 39.

The spelling of 113406377520 in words is "one hundred thirteen billion, four hundred six million, three hundred seventy-seven thousand, five hundred twenty".